Gather all your ingredients and your mixing tools: a bowl, a whisk, and a spatula.
In the bowl, scoop the Greek yogurt and add a splash of buttermilk or milk to loosen it up slightly. Whisk vigorously until the mixture is smooth and creamy, with a slight sheen.
Stir in the garlic powder, chopped dill, and chopped parsley, folding them into the yogurt until evenly distributed. The herbs should be visibly bright and fragrant.
Squeeze the lemon juice into the bowl, then stir thoroughly. Taste the mixture and add more lemon if you'd like it zippier.
Season with salt and a pinch of black pepper. Mix again and taste to adjust the seasoning as needed.
Transfer the dip into a jar or container, cover it tightly, and refrigerate for at least 30 minutes. This allows the flavors to meld and the dip to thicken slightly.
Once chilled, give the dip a quick stir, then serve it with fresh veggies, chips, or as a flavorful salad dressing. Enjoy the bright, herbal, tangy goodness!